[mapguide-users] polygon zoom problem
padmini godavarthi
godavarthi.padmini at gmail.com
Tue Jun 2 02:05:32 EDT 2009
Hi,
This problem might be with fdo3.3.1.
previously it works fine for fdo3.3.0 oracle providers
Dim byteReader As MgByteReader =featureReader.GetGeometry("GEOMETRY")
but i have replaced this fdo3.3.0 with fdo 3.3.1 oracle providers( 3 dlls
) for IN operator in setfilter .
while executing above statement i got an error that
"Specified object was not found"
Can any one plz tell me the solution???????
Regards,
padmini.
Kenneth Skovhede, GEOGRAF A/S wrote:
>
> So, the problem is that you sometimes get "Specified Object was Not
> Found"?
> In that case your title and surrounding description is quite misleading.
>
> Are you absolutely sure that the geometry column is named "GEOMETRY"
> in all cases?
>
> Do you check that the geometry value is not null before reading it?
>
> Regards, Kenneth Skovhede, GEOGRAF A/S
>
>
>
> padmini godavarthi skrev:
>> Hi Kenneth,
>> Thanks for ur response.
>> some times i got the x,y and scale values correctly then the zoom
>> function
>> works correctly
>>
>> some times i got the error at MgByteReader
>>
>>
>> Dim featureReader As MgFeatureReader
>> =featureService.SelectFeatures(fetresource,layer.GetFeatureClassName(),
>> nameQuery)
>> Dim geometryFactory As MgGeometryFactory = New MgGeometryFactory()
>> While featureReader.ReadNext()
>>
>>
>>
>> i got the error as "Specified Object was Not Found" in
>>
>> Dim byteReader As MgByteReader =
>> featureReader.GetGeometry("GEOMETRY")
>>
>> can u plz tell me the solution??????????
>>
>> Regards,
>> Padmini.
>>
>>
>>
>>
>>
>>
>>
>>
>> Kenneth Skovhede, GEOGRAF A/S wrote:
>>
>>> Do you get any javascript errors?
>>> Are your x,y and scale values correct in the javascript?
>>>
>>> Regards, Kenneth Skovhede, GEOGRAF A/S
>>>
>>>
>>>
>>> padmini godavarthi skrev:
>>>
>>>> Hi,
>>>> iam using mapguide opensource 2.0 (with .net 2.0 +IIS 5.1) on win xp
>>>>
>>>> i have a problem with zom toview function??????????????????
>>>>
>>>> Try
>>>>
>>>>
>>>> If Not Session("id1") Is Nothing Then
>>>>
>>>>
>>>> Dim mapCenterX As Double
>>>> Dim mapCenterY As Double
>>>>
>>>> Dim serverVars As NameValueCollection =
>>>> Request.ServerVariables
>>>> Dim strServerVars As String = ""
>>>> Dim str1 As String
>>>> For Each str1 In serverVars.AllKeys
>>>> strServerVars += "<br>" & str1
>>>> Next
>>>> Dim platform As String = serverVars("SERVER_SOFTWARE")
>>>> Dim queryStr As String = serverVars("QUERY_STRING")
>>>> Dim queryStr1 As String = serverVars("Form")
>>>> Dim requestParams As NameValueCollection =
>>>> IIf(Request.HttpMethod = "POST", Request.Form, Request.QueryString)
>>>> Dim sessionId As String =
>>>> Request.QueryString("SESSION")
>>>> Dim realPath As String =
>>>> Request.ServerVariables("APPL_PHYSICAL_PATH")
>>>> Dim configPath As String = realPath + "webconfig.ini"
>>>> MapGuideApi.MgInitializeWebTier(configPath)
>>>> Dim userInfo As MgUserInformation = New
>>>> MgUserInformation(sessionId)
>>>> Dim siteConnection As MgSiteConnection = New
>>>> MgSiteConnection
>>>> siteConnection.Open(userInfo)
>>>> Dim resService As MgResourceService =
>>>> siteConnection.CreateService(MgServiceType.ResourceService)
>>>> Dim featureService As MgFeatureService =
>>>> siteConnection.CreateService(MgServiceType.FeatureService)
>>>> Dim fetresource As MgResourceIdentifier = New
>>>> MgResourceIdentifier("Library://propertytax/resource.FeatureSource")
>>>> Dim nameQuery As MgFeatureQueryOptions = New
>>>> MgFeatureQueryOptions()
>>>> Dim val As String = "PARCEL_ID"
>>>> nameQuery.AddFeatureProperty(val)
>>>> Dim queryval As String = Session("id1")
>>>> Dim totquery As String = val & "=" & "'" & queryval &
>>>> "'"
>>>> nameQuery.SetFilter(totquery)
>>>> Dim tabname As String = "PROPERTY LAYER"
>>>> Dim map As MgMap = New MgMap()
>>>> map.Open(resService, "oramap")
>>>> Dim layer As MgLayer =
>>>> map.GetLayers().GetItem("PROPERTY
>>>> LAYER")
>>>> Dim geometryReaderWriter As MgAgfReaderWriter = New
>>>> MgAgfReaderWriter()
>>>> Dim featureReader As MgFeatureReader =
>>>> featureService.SelectFeatures(fetresource, layer.GetFeatureClassName(),
>>>> nameQuery)
>>>> Dim geometryFactory As MgGeometryFactory = New
>>>> MgGeometryFactory()
>>>> While featureReader.ReadNext()
>>>> Dim byteReader As MgByteReader =
>>>> featureReader.GetGeometry("GEOMETRY")
>>>> Dim geometry As MgGeometry =
>>>> geometryReaderWriter.Read(byteReader)
>>>> Dim centroid As MgPoint = geometry.GetCentroid()
>>>> mapCenterX = centroid.GetCoordinate().GetX()
>>>> mapCenterY = centroid.GetCoordinate().GetY()
>>>> Page.ClientScript.RegisterStartupScript(Page.GetType(),
>>>> "test",
>>>> "highlight(" & mapCenterX & "," & mapCenterY & ");", True)
>>>> 'End While
>>>> featureReader.Close()
>>>> Dim resService1 As MgResourceService =
>>>> CType(siteConnection.CreateService(MgServiceType.ResourceService),
>>>> MgResourceService)
>>>> Dim featureService1 As MgFeatureService =
>>>> CType(siteConnection.CreateService(MgServiceType.FeatureService),
>>>> MgFeatureService)
>>>> Dim fetresource1 As MgResourceIdentifier = New
>>>> MgResourceIdentifier("Library://propertytax/resource.FeatureSource")
>>>> Dim nameQuery1 As MgFeatureQueryOptions = New
>>>> MgFeatureQueryOptions()
>>>> Dim val1 As String = "PARCEL_ID"
>>>> nameQuery1.AddFeatureProperty(val1)
>>>> Dim queryval1 As String = Session("id1")
>>>> Dim totquery1 As String = val1 + "=" + "'" + queryval1
>>>> +
>>>> "'"
>>>> nameQuery1.SetFilter(totquery1)
>>>> Dim layer1 As MgLayer =
>>>> map.GetLayers().GetItem("PROPERTY
>>>> LAYER")
>>>> Dim featureReader1 As MgFeatureReader =
>>>> featureService1.SelectFeatures(fetresource1,
>>>> layer1.GetFeatureClassName(),
>>>> nameQuery1)
>>>> Dim selection As MgSelection = New MgSelection(map)
>>>> selection.AddFeatures(layer1, featureReader1, 0)
>>>> Dim selectXML As String = selection.ToXml()
>>>> selection.Save(resService1, "oramap")
>>>> Page.ClientScript.RegisterStartupScript(Page.GetType(),
>>>> "test", "select('" & selectXML & "')", True)
>>>> featureReader1.Close()
>>>>
>>>> End If
>>>>
>>>>
>>>> Catch ex As Exception
>>>> 'MsgBox(ex.Message)
>>>> End Try
>>>>
>>>> -----------------------------------------------------------------------
>>>>
>>>> and my java script functions are
>>>>
>>>>
>>>> function select(val) {
>>>>
>>>> var selectionXML = val;
>>>> parent.parent.SetSelectionXML(selectionXML);
>>>> // parent.parent.mapFrame.ZoomToView(x,y,2000,true);
>>>>
>>>> parent.parent.refresh;
>>>> alert("Selected");
>>>>
>>>> }
>>>> function highlight(x,y)
>>>> {
>>>> // alert("2nd");
>>>>
>>>> var xval = x;
>>>> var yval = y;
>>>>
>>>> parent.parent.mapFrame.ZoomToView(xval,yval,1000,true);
>>>>
>>>> }
>>>>
>>>> i wrote all this code in taskpane page loading even
>>>> but i didnt get the exact zoom level of that parcel it remains same as
>>>> the
>>>> initial view
>>>>
>>>> can any one plz tell me the solution????????????????????????????
>>>>
>>>>
>>>> Regards,
>>>> padmini.
>>>>
>>>>
>>>>
>>>>
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>>>
>>>
>>>
>>
>>
>
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